Dental suction unit



FIG. 1 is a perspective view of a dental suction unit;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines depict portions of the dental suction unit that form no part of the claimed design. 

CLAIM The ornamental design for a dental suction unit, as shown and described herein. 